90
2. Use the Up or Down key to select “Yes” and begin the
calibration process. The display will now read “Apply 4mA
then press OK”.
3. Disconnect any wiring that is connected to the Pressure input
and instead attach the process calibrator’s positive lead in its
place.
4. Turn on the process calibrator and set it to source a current of
4mA (0%).
5. Press the OK key and the message “Calibrating Wait…”
will appear for several seconds followed by the message
“Parameter Set” after the calibration has successfully
completed.
Calibrate the Pressure Input’s Span point:
1. Press the Menu Key repeatedly until “Calibrate 4-20 PRS
Span?” is shown on the display.
2. Use the Up or Down key to select “Yes” and begin the
calibration process. The display will now read “Apply 20mA
then press OK”.
3. Set the process calibrator to source a current of 20mA (100%).
4. Press the OK key and the message “Calibrating Wait…”
will appear for several seconds followed by the message
“Parameter Set” after the calibration has successfully
completed.
5. Disconnect the process calibrator from the Pressure input and
reconnect any wiring that was removed from it previously.
Disconnect the process calibrator’s negative lead from the ground pin on the 4-20mA Input
Card.
RESETTING CALIBRATION DATA
If you want to reset the calibration settings to default, use the “Cal Data” option at the end of menu 7.
This process resets the following calibrations to defaults:
Calibration of the Thermocouples
Calibration of the 4-20mA Output
Calibration of the 4-20mA Intput
1. Make sure that the system is stopped
2. Press the UP and Down Keys simultaneously to unlock the
Calibration Menu (menu 7) which is normally hidden.
3. Press the Menu Key repeatedly until menu 7 is shown.
4. Press OK. If prompted, enter the L2 Password:
5. Press the Menu Key repeatedly until “Cal Data” is shown on
the display
6. Use the Up or Down keys to select “Yes”.
7. Press OK and the message “Parameter Saved” will show on
the display briefly.
8. Press and hold the OK key for 3 seconds until the message
“Password Logout” is displayed on the screen. The Calibration
Menu is now hidden again.
CALIBRATION (
MENU 7)
This menu is used to adjust the calibration of thermocouples, 4-20mA Output, and 4-20mA Expansion
Card inputs. This menu is hidden by default.
MENU MAP ON SCREEN BRIEF DESCRIPTION RANGE DEFAULT SETTING SECTION
Cal Process TC Zero Cal Proc TC
Zero?
Calibrate Process Thermocouple zero
point by shorting the Input
N/A N/A
Cal High Temp TC Zero Cal HiTemp TC
Zero?
Calibrate High Temp Thermocouple zero
point by shorting the Input
N/A N/A
Cal Aux TC Zero Cal AUX TC
Zero?
Calibrate Aux Thermocouple zero point
by shorting the Input
N/A N/A
Cal Process TC Span Cal Proc TC
Span: xxC
Calibrate Process Thermocouple span
point by applying a calibrated reference
then adjust the on screen value
N/A N/A
Cal High Temp TC Span Cal HiTemp TC
Span: xxC
Calibrate High Temp Thermocouple span
point by applying a calibrated reference
then adjust the on screen value
N/A N/A
Cal Aux TC Span Cal AUX TC
Span: xxC
Calibrate Aux Thermocouple span point
by applying a calibrated reference then
adjust the on screen value
N/A N/A
Cal 4-20 Level Zero Calibrate 4-20
LVL Zero?
Calibrate 4-20mA Level Input zero point
by applying a calibrated 4mA reference
N/A N/A
Cal 4-20 Level Span Calibrate 4-20
LVL Span?
Calibrate 4-20mA Level Input span point
by applying a calibrated 20mA reference
N/A N/A
Cal 4-20 Pressure Zero Calibrate 4-20
PRS Zero?
Calibrate 4-20mA Pressure Input zero
point by applying a calibrated 4mA
reference
N/A N/A
Cal 4-20 Pressure Span Calibrate 4-20
PRS Span?
Calibrate 4-20mA Pressure Input span
point by applying a calibrated 20mA
reference
N/A N/A
Cal 4-20 Out Zero Cal 4-20 Out
Zero: x
Calibrate 4-20mA Output zero point by
adjusting until a multimeter reads 4mA
N/A N/A
Cal 4-20 Out Span Cal 4-20 Out
Span: x
Calibrate 4-20mA Output zero point
by adjusting until a multimeter reads
20mA
N/A N/A 3.5.8
Display TC Zero Factors Cal Factors Zero
w x y z
Thermocouple zero point calibration
factors for Debug
N/A N/A 3.5.8
Display TC Span Factors Cal Factors Span
w x y z
Thermocouple span point calibration
factors for Debug
N/A N/A 3.5.8
Display 4-20 PRS Factors 4-20 PRS Factors
Z=x S=y
4-20mA Pressure zero point and span
point calibration factors for Debug
N/A N/A 3.5.8
Display 4-20 LVL Factors 4-20 LVL Factors
Z=x S=y
4-20mA Level zero point and span point
calibration factors for Debug
N/A N/A 3.5.8
Clear Cal Clear All Cal
Capital Data
Restore all calibration factors to 0` Yes/No No 3.5.8
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